Weed killer



Nov. 20, 1934. L, E, REYNARD 1,981,122

WEED KILLER Filed July 19, 1934 2 Sheets-Sheet 9 I Invenlor I! .Zee Z Za By NOV. 20, 1934. J L, REYNARD 1,981,122

I WEED KILLER Filed July 19, 1934 2 heet.sShee1; 2

l Eel J9 Inucnlor 4 JeeEFqymra? l3 Patented Nov. 20, 1934 UNITED STATESWEED KILLER Lee E. Reynard, Utica, Ohio Application July 19, 1934,Serial No. 736,116

2 Claims.

This invention relates to a device for killing weeds and the like, thegeneral object of the invention being to provide means whereby liquidcan be injected into the roots and around the roots of weeds to kill thesame by means of a cylinder containing a piston for forcing liquid fromthe cylinder into a needle which is to be pressed into the soil androots of the weeds.

Another object of this invention is to so form the parts that packingmeans, piston rings and the like are rendered unnecessary.

This invention also consists in certain other features of constructionand in the combination and arrangement of several parts, to behereinafter fully described, illustrated in the. accompanying drawingsand specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:-

Fig. 1 is an elevation of the device.

Fig. 2 is a section on line 2--2 of Fig. 1.

Fig. 3 is a view of the piston and its rod.

Fig. 4 is a vertical sectional view through the lower part of thecylinder and the piston.

Fig. 5 is a section on line 5-5 of Fig. 2.

Fig. 6 is a vertical sectional view through the needle.

Fig. 7 is a section on line 77 of Fig. 6.

Fig. 8 is an elevation of the piston cylinder.

In the drawings, the numeral 1 indicates the cylindrical member whichhas one end closed by a tapered elongated cap 2 and its other end by adome-shaped cap 3 which is threaded to the cylinder 1 so that it can beremoved and this cap 3 has a filling opening therein closed by a plug 4.A boss 5 is formed on the cap 3 for forming a guide for the piston rod6. The cap 2 is provided with an elongated bore, the outer end of whichis enlarged and threaded and a cylinder 7 passes through the bore andhas a threaded tapered part 8 at its outer end which is to be threadedinto the threaded part of the bore of the cap 2, the tapered partmerging into a non-circular part 9 for engagement by a wrench so thatthe cylinder can be tightly threaded into the bore of the cap 2. Athreaded receiving part 10 extends from the part 9 for receiving thethreaded end of a needle 11, said threaded part 10 having a valve seat12 therein for receiving a ball valve 13 which is pressed upon the seatby a spring 14 having its outer end engaging a pin 15 carried by theinner end of the needle.

The piston rod 6 has its outer end forked as shown at 16 and the prongssupport a handle 17. This rod is preferably of tubular construction andits inner end receives a piston 18 which is held in place by a pin 19.This piston is preferably formed of rolled steel ground to tightly fitthe cylinder '7. Said cylinder 7 has a number of holes 20 in its innerend which communicates the cylinder with the large cylinder 1 and whenthe piston rod is pulled outwardly, the piston will uncover said holesso that liquid placed in the large cylinder 1 can enter the cylinder 7.A stop member 21 on the piston rod engages the cap 5 to limit outwardmovement of the piston rod. A stop member 22 on the inner part of theneedle limits movement of the needle into the ground.

Thus, it will be seen that any suitable liquid which will kill weeds andthe like can be placed in the cylinder 1 by removing the plug 4 and byholding the device in an upright position, the piston and piston rodwill move downwardly so that the piston will close the holes 20 toprevent escape of the liquid. When the device is to be used, the needleis pressed into the roots or the ground adjacent the roots and then thepiston rod is pulled upwardly so that the liquid can pass into thecylinder 7 through the holes 20 and then the piston rod is presseddownwardly so that the piston 18 will enter the piston 7 and thus exertgreat pressure upon the liquid in the piston '7 so as to force theliquid past the valve 13 into the needle from which it will escapethrough the holes 23 in the outer end of the needle and thus the liquidwill be ejected into the roots and around the roots and thus the weedswill be killed. The valve 13 will prevent air from being drawn into thecylinder '7 when the piston is retracted and it also acts to prevent anyescapement of the liquid from the cylinder '7 before the piston isprojected.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claims.

I claim:--

1. A device of the class described comprising a cylinder having endmembers, a small cylinder carried by one end member and projecting intothe large cylinder and having holes in its inner end, a hollow needlethreaded to the outer end of the small cylinder, a piston of rod-likeform fitting in the small cylinder, and a piston rod connected with thepiston and passingthrough the opposite end member of the large cylinder.

2. A device of the class described comprising a large cylinder, capsclosing the ends thereof,

passing through the bore and having a threaded part engaging the threadsof the cap with its inner end having holes therein to place the cylinderin engagement with the large cylinder,

a rod-like piston connected with the piston rod and fitting in the smallcylinder, a needle detachably connected with the outer end of the smallcylinder of hollow construction and having outlet ports at its outerend, and a springpressed valve normally closing the outer end of thesmall cylinder.

' LEE E. REYNARD.

